NavList:

I wrote:

As a rule of thumb the smaller the space (often a triangle, though can have four or more sides) that encompasses the presumed fix the better. This makes intuitive sense; since as you note perfect LOPS would coincide at a single point, the fix.

but perhaps that should have been:

 “perfect LOPS would coincide at a single point, the actual position.”

The fix would be the actual position: grace of perfectly plotted results, of perfectly reduced perfect sights, using perfect methods; and the perfect sextant and watch, recorded and reduced by the perfect navigator, who just happens to be having a very nice day, with but few of those pesky clouds. With all that stuff to go wrong its something of a miracle that so many sights do give useful (accurate enough) information.

But information isn’t knowledge and knowledge isn’t wisdom  … or Goodness